Revolving explosive engine



June 29 1926.

. H.V,G. HAASE REvoLvING ExPLosIx/E ENGINE Filed May1'4- 1925 5 sheets-sheet 2 INVENTOR:

H AAS/s `BY M A TToR/VEYS June 29 1926.

H.,G. HAASE REVOLVING EXPLOSIVE ENGlNE Filed May 14. -1

923 5 Sheets-Sheet 5 INVENTOR:

A TTORNEYG.

Patented June 29, i926.

ilili'i STATES 'Fi'i E PATEN HERMAN G. HAASE, 0F MINNEAOLIS, .lVIINNIEISOSLA.V

REVOLVING EXPLGSIVE ENGINE.

Application filed May 14, 1923. Serial No. 638,837.V

is to provide. an engine of this character'v which does not require any crank shaft orV crank case, and in which the power'isv applied through leverage. Another object is to provide an engine of this character in which the pistons are rigidly secured to lever arms.

The full objects and advantages of Vmy invention will appear in connection with the detailed description thereof, and Athe novel features of my inventive idea will be particularly pointed out in the claims.

In the accompanying drawingsv which illustrate one embodiment of my invention,-

F ig. 1 is a view of the engine in vertical section on the line 1 1 of Fig. 3. Fig. 2vis a view in vertical section on the line 2 2 of Fig. 3. Fig. 8 is a view in vertical section on the line 3 3 of Fig. 1; Fig. 4 is an elevational view of a cam sleeve. Fig. 5 is a View in rvertical sect-ion on the line 5-5 of Fig. 2. Fig. 6 is a view in vertical section on the line 66 of Fig. 2. Fig. 7 is a view in vertical section on the line 7-7 of Fig. 3. Fig. 8 is a view in vertical section on the line 8-8 of Fig. 7. 9 is a View showing a wiring diagram.

As shown in the drawings, I provide two standards 10 and 12, the latter having an extended portion 14 provided with a cam groove 16. Rotatably mounted in bearings 4in the two standards is a main shaft which has a hollow portion 18, a solid portion 20 and a second hollow portion 22 in the outer end of which a solid shaft portionv24 is secured by a pin 26 which passes through the hollow portion 22, the shaft portion 24 and an annular block 28 of insulatingmaterial. This Vmain shaft is adapted to be rotated by a plurality of curved cylinders arranged around the shaft in the form ofspaced segments of a circle. In the embodiment shown, there are four of these cylinders designated 30, 32, 34, and 36 which as best shown in Fig. 6 are secured to segmental flanges 38, 40, 42, and 44 formed around the periphery ofl a disk or annular member 46 having a hub 48 keyed to the main shaft. Arranged for cooperation with the cylinders are curved pistons 50, 52, 54, and 56 pivotally attached to the ends of piston rods 58, 60, 62 and 64 which are rigidly attached to lever arms 66, 68, and-72 rotatably mounted upon the main shaft. For this purpose, the inner ends of these arms are provided with hubs 74, 76, 7 8, and 80, the rst of which fits rotatably upon the shaft, while the other hubs fit concentrically upon each other. These hubs are located in a recessed portion of the hub 48 as Y shown in Fig. 3. Pivotally attached at one end to the outer ends of the arms 66, 68, 70 and 72 are levers 82, 84, 86, and 88 which are intermediately pivoted by bolts 90 to the disk 46, these arms at their outer ends carrying rollers 92 which travel in the fixed cam groove 16. Four projections 94 are formed on the disk 46 and intermediatey pivoted upon each of these projections are two levers 96 and 98. The levers 96 operate exhaust valves 100, there being one of these valves for each cylinder while the levers 98 operate inlet valves 102, there also being one of these latter valves for each cylinder. As best shown in Fig. 2, both sets of valves are normally held in closed position by springs 104 which surround the stems of the valves.V As shown in this figure, the outer ends of the levers have screwthreaded engagement with the outer ends of the valve stems. The inner ends of these levers are provided with rollers 106 and by referring to Fig. 3, it will be observed that the levers are so bent that'the rollers are adapted to cooperate with pairs of cams 108 and 110, there being four of the cams 108 for controlling the inlet of the four cylinders and four of the cams l1() for controlling the exhaust of the four'cylinders.

These cams are arranged in staggered relation around the periphery of a sleeve 112 as shown in Figs. 3 and 4. This sleeve is rotatably mounted on the main shaft and has a gear 114 fixed to one end thereof. This gear meshes with a gear 116 secured to a counter' shaft 118 to which is secured a gear 120` meshing with a pinion 122 keyed to the main shaft. The gear ratio of these gears is such that when the main shaft is driven by the engine, the cam sleeve will be driven'at the proper speed to open the valves once while the main shaft makes two revolutions. The annular block 28 of insulating material previously referred to has imbedded therein four segmental and equally spaced contact plates 124 adapted to engage in succession lll) with a xed contact finger 126 resiliently mounted in an insulating block 128. This finger is connected by a Wire 130 with a source of electrical energy 132, the circuit of this Wire including a switch 134. Wires 136 extend from the contact segments 124i through the hollow shaft portion 22 and then extend radially outward through an annular spacing disk 138 and are attached to :spark Aplug-gs 1-10, 142, Mil, and 146 With which the explosion ends .of the cylinders 30, 32, 3st, and 36 are respectively provided. The explosive mixture enters through the induction tube 148 into the hollow shaft portion 18 and passes .out of the latter through four vopenings 150 therein and into the conduits 152 connected With the `explosion ends of the respective cylinders Athrough ports controlled yby the inlet valves 102 previously referred to. The exhaust is through'ports controlled by the valves 100.

The operation and advantages of my invention 'Will be readily understood in cennection with the foregoing description. The cycle of operation will be understood by considering that the engine is making tWo revolutions in connection With Figs. 1 and 2. ln

1, the explosive position for the cylinders is indicated at A, and the exhaust begins at the position indicated B. When a. cylinder such as the cylinder 36 is in the position A, the piston and the .arm to which it .is ysecured :are held from backward move- .ment by means .of the lever 88 due to the fact that the roller 92 carried by the swinging `end of the lever is in a portion of the cam .groove 16 which is comparatively vclose to the center of revolution. The explosion, therefore, drives the cylinder and main shaft to which itis secured in clockwise direction, as viewed in Figs. 1 and 2. When the ,cylinder reaches :the position indicated B, lthe roller 96 has passed into a portion of the `,cam groove 1'6 which is comparatively remote tromv the center and the vpiston is in the outer end ofthe cylinder. es the lcylinder moves beyond .this position, the piston is gradually forced into the ycylinder and exhaust takes place, vthe exhaust valve being open at this time. Duri-ng the second revolution of the lengine Iconsidered in connection with F ig. 2, the explosive mixture is "iedraivn into'the cylinder at ythe position indicated `C due to the fact that the piston lbegins to move tovvafrd `the outer Lend of .the cylinder. It Will b-e understood that at this time the inlet valve is open. Then the cyl-- inder has reached the position indicated D,

.the piston has rmoved vtoward the explosion end of .the cylinder 4and the explosive mixture has been @compressed and is ready for explosion at the position .indica-ted A at the beginning Leffanother cycleof operations. It is to be noted that ythe engine is air-cooled, and requires no fan on account of the motion of the cylinders. l am aware of the fact that many changes may be made in the construction shown and described Wit-hout departing from the spirit of my invention, and the invention should, therefore, be considered in its broadest sense consistent with any disclosure in the prior art.

l claim:

1. A revolving explosive engine comprising a main shaft, a plurality of curved cylinders arranged inthe form of spaced segments of a `circle around said shaft and secured thereto, curved pistons Working in said cylinders, inlet and Loutlet valves for said cylinders, ,an annular member secured to said shaft, levers intermediately pivoted to said .annular member, said levers being vattached at one end to said inlet and outlet valves, a sleeve rotatably mounted on said shaft and having a plurality of cams in staggered .relation around its periphery for engagement With -said levers, a gearing `for Adriving said sleeve from said shaft, 'said gearing having a gear ratio sucfh that said sleeve Will be rotated at the proper speed t0 open said valves once While said shaft makes two revolutions.

2. A revolving explosive engine comprising a main shaft, a plurality of curved cylinders arranged in the form of spaced segments of a circle around said shaft' and secured thereto, curved pistons Working in said cylinders, arms rotatably mounted 0n said shaft and to which said pistons are secured, -a fixed member containing a 'cam groove, levers slidably attached at one iend to said arms, an annular -member secured to said shaft and to Which said levers are intermediately pivoted, the other ends .ofqsaijd levers operating in said cam groove whereby the position of said pistons is controlled, inlet and outlet valves for said cylinders, pairs of levers intermediately pivoted to 'said annular member, said `pairs of leve-rs being attached at one end to said inlet and outlet valves, a sleeve rotatably mounted .on said shaft and having a plural-ity of camscin staggered relation aroundA its `periphery for engagement with lsaid pairs of levers, a gearing for .driving said sleeve fromzsaid shaft, said gearing having a gear ratio such that said sleeve Will be rotated at proper speed to open said'valves once while ysaid .shaft makes tvvo revolutions. Y

3. A revolving explosive engine .comprising a main shaft, a plurality of curved cylinders arranged in the form of spaced segments of a circle around said shaft and securedthereto, curved pistons Working in said cylinders, inlet and outlet valves for said cylinders, an annular member secured to said shaft, levers pivoted to :said annular memberA and attached to said inlet and outlet valves, means for operating said levers in properly timed relation, saidmain shaft having a hollow portion provided withopenings in its wall, an induction tube connected with said hollow portion, and conduit tubes secured in said openings leading to said inlet valves.

4. A revolving explosive engine comprising a main shaft, a plurality of curved cylf inders arranged in the form of spaced segments of a circle around said shaft and secured thereto, curved pistons working in said cylinders, inlet and outlet valves for said cylinders, an annular member secured to said shaft, levers pivoted to said annular member and attached to said inlet and outlet valves, means for operating said levers in HERMAN G. HAASE. 

